Sbllees



UNITED STATES PATENT COLEMAN SELLERS, OE PHILADELPHIA, PENNSYLVANIA.

MACHINE FOR ROLLING PHOTOGRAPHIC PICTURES, eo.

Specification forming part of Letters Patent No. 36,028, dated July 29,1862.

To all whom it may concern:

Beit known that l, COLEMAN SELLERS, of the city and county ofPhiladelphia, in the State of Pennsylvania, have invented a new andImproved Machine for Bolling Photographic Pictures; and I do herebydeclare the following to be a full and exact description thereof.

The object of my invention is to furnish a convenient machine forrolling photographic pictures without injury to the texture of thepaper, and to unite with facility of operation simplicity and cheapnessof construction.

The nature of my invention consists in dispensing with the ordinaryhousing or supporting frame of the pair of rolls, making the bottom rollso large in diameter that only a portion of its circumference shall beused in the rolling operation 5 in making this bottom roll stationaryand causing the top roll to pass around that portion of itrlesigned foruse, and in using the lever or crank as a support for the top roller inplace of the housing generally used for that purpose, all of which canbe more clearly understood by reference to the accompanying drawings,making part of this specification, in which- Figure 1 represents anelevation of my machine, and Fig. 2 a plan, partially in section.

The machine consists of a base-board, A, near one end of which isaffixed by screws the large roller B. n The diameter of this roller mustbe such that the portion of its circumference utilized in rolling shallbe longer than the object to be rolled, and its width somewhat greaterthan that of the object. Thus, for rolling stereoscopic pictures, whichare seven and one-half inches long, the roller should be four andone-half inches in diameter and four inches face. Through the center ofthe roller B passes a loosely-fitted shaft, which, in the size machineused as an illustration, should be about two inches longer than thewidth of the roller-t'. e., six inches-and should be one inch indiameter. Through this shaft, at right angles to its axis, and outsideof the edge of the roller B, pass two holes, C C, counterbored on theirlower side to receive leather washers. Through the holes G C pass theends of two side levers, D D, threaded at their ends and provided withthumb-nuts E E. The levers D D should be about sixteen inches long, andtheir ends farthest from the screw should be united by a handle, Ff

The levers D D serve to carry near to the large roller B a small steelpolishing-roller, G. This roller should have `journals not more thanonethird the diameter of the roller itself, and its axis must beparallel with the axis ofthe large roller B. The roller G can beadjusted in relation to the large roller to suit the thickness of thesubstance to be rolled by means of the thumb-nuts E E; and the largeroller may, if it is deemed advisable, be flattened at the points markedx, to facilitate the entering of the substance to be rolled. This,however, is not essential.

The operation of the machine is very simple, and is as follows:.Supposing it is a cardpieture to be rolled, the handle oi' the levers lresting on the base-board, the picture is placed perpendicularly on thepoint of contact of the two rolls and its face toward the steelpolishing-roller. Then, resting the left hand on the base-board to holdthe machine steady, the right hand grasps the handle ofthe levers,and,lifting it up, the roller G is carried around the surface of the largeroller B and passes over the face of the card-picture, which will hold atangential position to the surfaces of the two rolls during the passage.Avibratory motion of the lever, causing the polishing-roller G to passback and forth over the picture, will insure a fine polish.

In an ordinary system of rolls, one above the other, and with motiongiven to one by a crank, the other roll must receive its motion byfriction through thesubstancc being rolled. This gives a calenderingstrain on the substance and injures the texture of thin paper. Toobviate this difculty the two rolls are generally provided with gearingto insure the surface of each having the same velocity, and in somecases polished steel plates are placed between the rollers, all of whichadds to the cost of the machine.

In my machine the theory of the operation is the same as the dragging ofa garden-roller over the grass. The center or axis is continuallycarried forward, and but little calender ing effect is felt in thematerial being rolled.

My machine recommends itself pre-eminently for cheapness of constructionand convenience of operation, and has an advantage over all otherrolling-machines, in being light and portable and able to be usedwithout being bolted to a stand or table. The machine, as I havedescribed it, is what I deem best suited for ordinary use 5 but it maybev modied in many Ways Without affecting its theory of operation. Thus,for instance, by bolting the large roller to the top of a column orstand, more than one-half of its circumference could be utilized. Thelevers might be arranged in various Ways by using Wedges or cams inplace of the thumb-nuts, &c.

Therefore, Without limiting my claim to the exact form and manner ofconstruction, what I claim as new, and desire to secure by LettersPatent, is-

The rotation of the polishing-roll or its equivalent about the largeroll or its equivalent, substantially in the manner and for the purposespecified.

COLEMAN SELLERS.

Witnesses:

N. J. DINANT, MATT. CARTWRIGHT, J r.

